PADI Open Water Exam Study Guide Questions and Answers (2024 / 2025) (Verified Answers)PDF

1. When is an object positively buoyant Answer When it displaces a volume of water weighing more than its own weight. 2. When is an object negatively buoyant Answer When it displaces a volume of water weighing less than its own weight. 3. When is an object neutrally buoyant Answer When it displaces a volume of water weighing the same as its own weight. 4. Why two pieces of equipment do you use to control your buoyancy Answer BCD, Lead weight 5. What does buoyancy help with when you are underwater Answer Controlling where you are 6. What does buoyancy help with when you are at the surface Answer Floatation, conserving energy 7. How does the buoyancy of an object differ in fresh/salt water Answer More buoyant in salt than fresh 8. When you exhale what happens Answer Lung volume decreases so you have less buoyancy. 9. When you inhale what happens Answer Lung volume increases so you have more buoyancy. Why don't you feel air pressure Answer Your body is primarily liquid, which is incompressible and distribute pressure equally throughout your whole body